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<title>Predefined Constants</title>
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<h1>Predefined Constants</h1>
<p class="simpara">
The constants below are defined by this extension, and
will only be available when the extension has either
been compiled into PHP or dynamically loaded at runtime.
</p>
<table class="doctable table">
<caption><strong>XML constants</strong></caption>
<thead>
<tr>
<th>Constant</th>
<th>Value</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr id="constant.xml-element-node">
<td>
<strong><code>XML_ELEMENT_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>1</td>
<td>Node is a <a href="class.domelement.html" class="classname">DOMElement</a></td>
</tr>
<tr id="constant.xml-attribute-node">
<td>
<strong><code>XML_ATTRIBUTE_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>2</td>
<td>Node is a <a href="class.domattr.html" class="classname">DOMAttr</a></td>
</tr>
<tr id="constant.xml-text-node">
<td>
<strong><code>XML_TEXT_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>3</td>
<td>Node is a <a href="class.domtext.html" class="classname">DOMText</a></td>
</tr>
<tr id="constant.xml-cdata-section-node">
<td>
<strong><code>XML_CDATA_SECTION_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>4</td>
<td>Node is a <a href="class.domcharacterdata.html" class="classname">DOMCharacterData</a></td>
</tr>
<tr id="constant.xml-entity-ref-node">
<td>
<strong><code>XML_ENTITY_REF_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>5</td>
<td>Node is a <a href="class.domentityreference.html" class="classname">DOMEntityReference</a></td>
</tr>
<tr id="constant.xml-entity-node">
<td>
<strong><code>XML_ENTITY_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>6</td>
<td>Node is a <a href="class.domentity.html" class="classname">DOMEntity</a></td>
</tr>
<tr id="constant.xml-pi-node">
<td>
<strong><code>XML_PI_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>7</td>
<td>Node is a <a href="class.domprocessinginstruction.html" class="classname">DOMProcessingInstruction</a></td>
</tr>
<tr id="constant.xml-comment-node">
<td>
<strong><code>XML_COMMENT_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>8</td>
<td>Node is a <a href="class.domcomment.html" class="classname">DOMComment</a></td>
</tr>
<tr id="constant.xml-document-node">
<td>
<strong><code>XML_DOCUMENT_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>9</td>
<td>Node is a <a href="class.domdocument.html" class="classname">DOMDocument</a></td>
</tr>
<tr id="constant.xml-document-type-node">
<td>
<strong><code>XML_DOCUMENT_TYPE_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>10</td>
<td>Node is a <a href="class.domdocumenttype.html" class="classname">DOMDocumentType</a></td>
</tr>
<tr id="constant.xml-document-frag-node">
<td>
<strong><code>XML_DOCUMENT_FRAG_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>11</td>
<td>Node is a <a href="class.domdocumentfragment.html" class="classname">DOMDocumentFragment</a></td>
</tr>
<tr id="constant.xml-notation-node">
<td>
<strong><code>XML_NOTATION_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>12</td>
<td>Node is a <a href="class.domnotation.html" class="classname">DOMNotation</a></td>
</tr>
<tr id="constant.xml-html-document-node">
<td>
<strong><code>XML_HTML_DOCUMENT_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>13</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-dtd-node">
<td>
<strong><code>XML_DTD_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>14</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-element-decl-node">
<td>
<strong><code>XML_ELEMENT_DECL_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>15</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-decl-node">
<td>
<strong><code>XML_ATTRIBUTE_DECL_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>16</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-entity-decl-node">
<td>
<strong><code>XML_ENTITY_DECL_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>17</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-namespace-decl-node">
<td>
<strong><code>XML_NAMESPACE_DECL_NODE</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>18</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-cdata">
<td>
<strong><code>XML_ATTRIBUTE_CDATA</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>1</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-id">
<td>
<strong><code>XML_ATTRIBUTE_ID</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>2</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-idref">
<td>
<strong><code>XML_ATTRIBUTE_IDREF</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>3</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-idrefs">
<td>
<strong><code>XML_ATTRIBUTE_IDREFS</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>4</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-entity">
<td>
<strong><code>XML_ATTRIBUTE_ENTITY</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>5</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-nmtoken">
<td>
<strong><code>XML_ATTRIBUTE_NMTOKEN</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>7</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-nmtokens">
<td>
<strong><code>XML_ATTRIBUTE_NMTOKENS</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>8</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-enumeration">
<td>
<strong><code>XML_ATTRIBUTE_ENUMERATION</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>9</td>
<td class="empty"> </td>
</tr>
<tr id="constant.xml-attribute-notation">
<td>
<strong><code>XML_ATTRIBUTE_NOTATION</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>10</td>
<td class="empty"> </td>
</tr>
</tbody>
</table>
<table class="doctable table">
<caption><strong>DOMException constants</strong></caption>
<thead>
<tr>
<th>Constant</th>
<th>Value</th>
<th>Description</th>
</tr>
</thead>
<tbody class="tbody">
<tr id="constant.dom-php-err">
<td>
<strong><code>DOM_PHP_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>0</td>
<td>
Error code not part of the DOM specification. Meant for PHP errors.
</td>
</tr>
<tr id="constant.dom-index-size-err">
<td>
<strong><code>DOM_INDEX_SIZE_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>1</td>
<td>
If index or size is negative, or greater than the allowed value.
</td>
</tr>
<tr id="constant.domstring-size-err">
<td>
<strong><code>DOMSTRING_SIZE_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>2</td>
<td>
If the specified range of text does not fit into a
<strong class="classname">DOMString</strong>.
</td>
</tr>
<tr id="constant.dom-hierarchy-request-err">
<td>
<strong><code>DOM_HIERARCHY_REQUEST_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>3</td>
<td>If any node is inserted somewhere it doesn't belong</td>
</tr>
<tr id="constant.dom-wrong-document-err">
<td>
<strong><code>DOM_WRONG_DOCUMENT_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>4</td>
<td>
If a node is used in a different document than the one that created it.
</td>
</tr>
<tr id="constant.dom-invalid-character-err">
<td>
<strong><code>DOM_INVALID_CHARACTER_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>5</td>
<td>
If an invalid or illegal character is specified, such as in a name.
</td>
</tr>
<tr id="constant.dom-no-data-allowed-err">
<td>
<strong><code>DOM_NO_DATA_ALLOWED_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>6</td>
<td>
If data is specified for a node which does not support data.
</td>
</tr>
<tr id="constant.dom-no-modification-allowed-err">
<td>
<strong><code>DOM_NO_MODIFICATION_ALLOWED_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>7</td>
<td>
If an attempt is made to modify an object where modifications are not allowed.
</td>
</tr>
<tr id="constant.dom-not-found-err">
<td>
<strong><code>DOM_NOT_FOUND_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>8</td>
<td>
If an attempt is made to reference a node in a context where it does not exist.
</td>
</tr>
<tr id="constant.dom-not-supported-err">
<td>
<strong><code>DOM_NOT_SUPPORTED_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>9</td>
<td>
If the implementation does not support the requested type of object or operation.
</td>
</tr>
<tr id="constant.dom-inuse-attribute-err">
<td>
<strong><code>DOM_INUSE_ATTRIBUTE_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>10</td>
<td>
If an attempt is made to add an attribute that is already in use elsewhere.
</td>
</tr>
<tr id="constant.dom-invalid-state-err">
<td>
<strong><code>DOM_INVALID_STATE_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>11</td>
<td>
If an attempt is made to use an object that is not, or is no longer, usable.
</td>
</tr>
<tr id="constant.dom-syntax-err">
<td>
<strong><code>DOM_SYNTAX_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>12</td>
<td>If an invalid or illegal string is specified.</td>
</tr>
<tr id="constant.dom-invalid-modification-err">
<td>
<strong><code>DOM_INVALID_MODIFICATION_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>13</td>
<td>If an attempt is made to modify the type of the underlying object.</td>
</tr>
<tr id="constant.dom-namespace-err">
<td>
<strong><code>DOM_NAMESPACE_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>14</td>
<td>
If an attempt is made to create or change an object in a way which is
incorrect with regard to namespaces.
</td>
</tr>
<tr id="constant.dom-invalid-access-err">
<td>
<strong><code>DOM_INVALID_ACCESS_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>15</td>
<td>
If a parameter or an operation is not supported by the underlying object.
</td>
</tr>
<tr id="constant.dom-validation-err">
<td>
<strong><code>DOM_VALIDATION_ERR</code></strong>
(<span class="type"><a href="language.types.integer.html" class="type integer">integer</a></span>)
</td>
<td>16</td>
<td>
If a call to a method such as insertBefore or removeChild would make the Node
invalid with respect to "partial validity", this exception would be raised and
the operation would not be done.
</td>
</tr>
</tbody>
</table>
</div>
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